Philip II called à la lèvre, was the margrave of Namur

Marquis of Namur

Namur was a county of the Carolingian and later Holy Roman Empire in the Low Countries. Its territories largely correspond with the present-day Belgian arrondissement Namur plus the northwestern part of the arrondissement Dinant....

 from 1212 to his death. He was the eldest son of the Peter II of Courtenay and Yolanda of Flanders

Yolanda of Flanders

Yolanda of Flanders ruled the Latin Empire in Constantinople for her husband Peter II of Courtenay from 1217 to 1219.She was the daughter of Baldwin V, Count of Hainault, and Countess Margaret I of Flanders. Two of her brothers, Baldwin I and then Henry, were emperors in Constantinople...

. On the death of his maternal uncle Philip the Noble

Philip I of Namur

Philip I , called the Noble, was the margrave of Namur from 1195 to his death. He was the second son of Baldwin V, Count of Hainault, and Margaret I, Countess of Flanders...

, Philip inherited Namur as the designated heir.

Philip had to fight the descendants of Henry IV of Luxembourg

Henry IV of Luxembourg

Henry IV , called the Blind , was count of Luxembourg from 1136 and count of Namur from 1139 until his abdication in 1189. He was the son of Godfrey I of Namur and Ermesinda, daughter of Conrad I of Luxembourg.He inherited the counties of La Roche and Durbuy from his cousins Henry II of Durbuy and...

 who had not given up their claim to Namur. He fought Waleran III of Limburg

Waleran III of Limburg

Waleran III was initially lord of Montjoie, then count of Luxembourg from 1214. He became count of Arlon and duke of Limburg on his father's death in 1221. He was the son of Henry III of Limburg and Sophia of Saarbrücken.As a younger son, he did not expect to inherit...

, husband of Ermesinda of Luxembourg, and concluded peace 13 February at Dinant

Dinant

Dinant is a Walloon city and municipality located on the River Meuse in the Belgian province of Namur, Belgium. The Dinant municipality includes the old communes of Anseremme, Bouvignes-sur-Meuse, Dréhance, Falmagne, Falmignoul, Foy-Notre-Dame, Furfooz, Lisogne, Sorinnes, and Thynes.-Origins to...

. When his father died in 1217, Philip refused the empire and it fell to his brother Robert

Robert of Courtenay

Robert of Courtenay , emperor of the Latin Empire, or of Constantinople, was a younger son of the emperor Peter II of Courtenay, and a descendant of the French king, Louis VI, while his mother Yolanda of Flanders was a sister of Baldwin and Henry of Flanders, the first and second emperors of the...

. In 1226, he partook in the Albigensian Crusade

Albigensian Crusade

The Albigensian Crusade or Cathar Crusade was a 20-year military campaign initiated by the Catholic Church to eliminate Catharism in Languedoc...

 of Louis VIII of France

Louis VIII of France

Louis VIII the Lion reigned as King of France from 1223 to 1226. He was a member of the House of Capet. Louis VIII was born in Paris, France, the son of Philip II Augustus and Isabelle of Hainaut. He was also Count of Artois, inheriting the county from his mother, from 1190–1226...

 and the siege of Avignon

Avignon

Avignon is a French commune in southeastern France in the départment of the Vaucluse bordered by the left bank of the Rhône river. Of the 94,787 inhabitants of the city on 1 January 2010, 12 000 live in the ancient town centre surrounded by its medieval ramparts.Often referred to as the...

. The city fell, but epidemics had ravaged the army. Philip died near Saint-Flour

Saint-Flour

Saint-Flour is the name or part of the name of several communes in France:* Saint-Flour, Cantal, in the Cantal département* Saint-Flour, Puy-de-Dôme, in the Puy-de-Dôme département* Saint-Flour-de-Mercoire, in the Lozère département...

 in the Auvergne

Auvergne (province)

Auvergne was a historic province in south central France. It was originally the feudal domain of the Counts of Auvergne. It is now the geographical and cultural area that corresponds to the former province....

. He was unmarried and the margraviate went to his brother Henry

Henry II of Namur

Henry II , was the margrave of Namur from 1226 to his death.He was the third son of the Peter II of Courtenay, Latin Emperor and Yolanda of Flanders...

.